AN INTRODUCTION TO HOW GPS WORKS
GPS (Global Positioning System) is the only system today able to show you your exact position on the Earth anytime, in any
weather, anywhere. GPS satellites, 24 in all, orbit at 11,000 nautical miles above the Earth. They are continuously monitored
by ground stations located worldwide. The satellites transmit signals that can be detected by anyone with a GPS receiver.
Using the receiver, you can determine your location with great precision.
The satellites are positioned so that we can receive signals from six of them nearly 100 percent of the time at any point on
Earth. You need that many signals to get the best position information. Satellites are equipped with very precise clocks that
keep accurate time to within three nanoseconds- that's 0.000000003, or three billionths of a second. This precision timing is
important because the receiver must determine exactly how long it takes for signals to travel from each GPS satellite. The
receiver uses this information to calculate its position.
The satellites actually broadcast two signals, one is only for military use, and one can be used by both military and civilians.
Since GPS is passive (you only need to receive the signal), there are no restrictions on who can use the signal available to
civilians. GPS technology can be used in variety of fields besides providing navigation for vehicles on the sea, in the air and
on the ground.
CAUTION
Read before you start to use:
Global position system (GPS) is obtained by American Ministry of National Defense, and they got the full responsibility about
the preciseness and the maintenance.Any changes may cause the capacity and preciseness of GPS differed.
If you use this device inside of buildings, tunnels, or any huge objects beside you, the GPS signals might be cut-off or
disturbed. Please do not consider that the receiver is malfunction.
The receiver operating temperature is located between – 20°C and + 60°C.
1. INTRODUCTION
The GPS StickTM Receiver is a total solution of GPS receiver with V5; 54 channels all-in-view tracking technology.
The GPS StickTM is designed as an ultra low power consumption device, and high position accuracy. It will update the satellite
position every second. The receiver’s auto-locating feature is capable of automatically determining a navigation solution
without intervention. However, acquisition performance could be interfered and do cold start if the receiver were initialized
with occurrence of the following events:
1) First in use
2) The GPS receiver is not in use for more than 3 months or transportation over distances further than 500
kilometers.
2. Features & Functions
1) V5 simultaneous time-frequency search bins. Signal detection better than -159dBm
2) Cold start < 40 seconds at –145dBm
3) Hot start < 1sec. under open sky.
4) 5m CEP accuracy.
5) Signal reacquisition 1 sec.
6) Acquire and track 54 satellites simultaneously
7) USB Version 1.1, 4dBm output level Up to 10m of operation
www.TheGPSStick.com GPS Stickit’n GO!
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